How to manage two organization inventory stocks as one on MRP

The customer requires their two organizations’ inventories to be managed as if they were a single pool. I have already configured two-way transfer sourcing rules for both organizations, but this does not achieve the requirement because MRP does not support circular sourcing rules.

For example: when Organization A has a demand of 40 units for Item A (which is associated with both Organization A and Organization B), and the on-hand is 10 in Org A and 20 in Org B, the system should recommend using 10 from Org A, transferring 20 from Org B, and creating a purchase order for the remaining 10 in Org A. The same logic should apply symmetrically for Org B. The sourcing rules need to run in both directions, but currently this is not possible due to MRP restrictions. How can this requirement be achieved in MRP?